Hand scraper



' Dec. 23,1930. E. WERNER 1,785,754

HAND SCRAPER Filed May 10, 1950 ,7 Q 75 INVENTOR Erwin [Merncr PatentedDec. 23, 1930 PATENT, orrics ERVIN WERNER, F BROOKLYN, YORK HAND SCRAPERApplication filed May 10, 1930. Serial No. 451,297.

vMy invention relates to hand scrapers, more particularly to those usedfor surfacing fioorsand has for its object the production of mover,simple and eflicient scraper provided with means for'automaticallyclamping and holding the blade in adjusted position for use.

A further object is to provide a scraper where old blades can be quicklyremoved and 1o newblades put into place without the use of 20represented my hand scraper in its preferred form, after Which I shallpoint out in the 7 claims those features which I believe to be I new.and of my own invention.

' In the drawings:

Figure 1 is a side elevation in part section showing the blade held inits working position.

Figure 2 is a side elevation of my scraper with the blade loose andready for change.

Figure 3 is a section along the line 3-3,

. Figure 1. I I

'7 In the carrying out of my invention I provide a main frame 11 whichmay either be saw cut as shown at 12 or the frame may be made of twopieces and fastened together.

The saw cut is made in the toe 18 of the frame and the opposite end 14:is conveniently shaped to accommodate the left hand of the person usingthe scraper. Substantially midway between the toe 13 and the end 14 is ahole 15 which accommodates the screw I 16 attached to the hinge 17 whichis fastened to the toe 18 of the handle portion 19. The handle portionis conveniently fashioned so Y that the hand will securely grip and holdit.

I have shown a typically formed handle with V curved end 20 whichengages the fingers while the curved end 21 fits the curvature of theclosed alm of thefoperatorshand. This saw grip andle which comprises apalm gripping portion and a finger gripping por-' tion is also providedwith a flat portion 40 which makes an acute angle with the fingergripping portion. On this flat portion I secure my hinge plate 41 which,has on the end adjacent the apex of the acute angle a ca'm which ispivoted to the screw 16. This hinge plate 41 forms a base for the hingeconstruction and abuts against the head or main frame 11 when in workingposition. It will be noticed that with this construction, any pull onthe handle tends to rotate the head around the pivot point 17 causingthe cutter to take holdmore readily.

The articulated cam connection is fastened at the toe 18 of thehandleand when inposition shown in Figure 1 tightens the toggle 17which'is adjusted by screwing the nut 25'- up on the thread of thetoggle screw16.

The blade is'heldin the saw cut when the toggle clamp is in positionshown in F igure 1 and is loose-when toggle clampis in position shown inFigure 2.-

A'slot 31 is cut in the nut 25 adapted to receive the blade 30 by meansof which the length of the toggle adjustment is regulated.

The shape of'the frame and handle is such that the angle a when inoperating position is between and degrees so that the scraper will diginto the wood without applying extra pressure to heel 14. This is veryimportant because by this construction the actual physical labor isreduced, as compared with other scrapers now on the market.

I wish it distinctly understood that my 5 hand scraper hereinillustrated and described is in the form in which I desire to constructit, but that changes or variations may be made as may be convenient ordesirable without] departing from the salient features of my inventionand I therefore intend the following claims to cover such modificationsas naturally fall within the lines of invention.

I claim:

1. A hand scraper, in combination a blade, a head provided with a slotin one end for receiving a blade and on the other end a hand grip, ahole at right angles to the slot, a. handle provided with a heel and atoe having a hingle plate fastened thereto,

a stud hinged to the plate and passing through the hole in the head, anut on the screw, the stud so hinged to theplate that the slot'will bedecreased when the heel of the handle contacts with the head.

2. The device of claim 1 includes means for adjusting the nut on tl1 escrewv with the blade. V v l 3. Ahand scraper in combination, a blade, 1a head provided with a slot in one end for receiving the blade,a"handleiconnected to the head through an articulated camcon nection,means to adjust the articulated conv nection so that a part ofthe handleengages 15 the head away from the blade When the blade is Workingposition so that the blade.

is held Within-.thehead with a predetermined V pressure e r v v 4. Ahand'scraper in c0n1bination, a blade, 90 ahead provided With aslot inone end for 5 receiving the blade, a saw grip handle con- 7 nected tothe head through an articulated .lcani connection so that a part of thehandle rests against the head on the end away from a; the bladewhereby apullronthe handle exerts a pressure on the end of the head away from theblade. e e

5. A hand scraper in combination; a blade, a head, provided With, aslot-in. one end for 30 receiving the blade, a saw grip'handlecoinprising a palm gripping portion and a'finger grippingport1on,"sa d handleha'ving a flat surface making an acute angle'withthe fin gr gripping portion, an articulated cain I I connectionconnecting the point of the acute angle on the handle to the head tobring the slot in close contact with the blade when the flat surface isabutting the head portion In testimony whereof I aflix my'signature. 4aV v ERVIN WERNER.

